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								# Investigation Report Example
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								**Author**: Matthew Raymer
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								**Date**: 2025-08-19
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								**Status**: 🎯 **ACTIVE** - Investigation methodology example
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								## Investigation — Registration Dialog Test Flakiness
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								## Objective
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								Identify root cause of flaky tests related to registration dialogs in contact
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								import scenarios.
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								## System Map
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								- User action → ContactInputForm → ContactsView.addContact() →
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								  handleRegistrationPrompt()
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								- setTimeout(1000ms) → Modal dialog → User response → Registration API call
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								- Test execution → Wait for dialog → Assert dialog content → Click response
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								  button
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								## Findings (Evidence)
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								- **1-second timeout causes flakiness** — evidence:
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								  `src/views/ContactsView.vue:971-1000`; setTimeout(..., 1000) in
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								  handleRegistrationPrompt()
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								- **Import flow bypasses dialogs** — evidence:
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								  `src/views/ContactImportView.vue:500-520`; importContacts() calls
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								  $insertContact() directly, no handleRegistrationPrompt()
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								- **Dialog only appears in direct add flow** — evidence:
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								  `src/views/ContactsView.vue:774-800`; addContact() calls
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								  handleRegistrationPrompt() after database insert
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								## Hypotheses & Failure Modes
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								- H1: 1-second timeout makes dialog appearance unpredictable; would fail when
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								  tests run faster than 1000ms
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								- H2: Test environment timing differs from development; watch for CI vs local
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								  test differences
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								## Corrections
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								- Updated: "Multiple dialogs interfere with imports" → "Import flow never
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								  triggers dialogs - they only appear in direct contact addition"
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								- Updated: "Complex batch registration needed" → "Simple timeout removal and
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								  test mode flag sufficient"
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								## Diagnostics (Next Checks)
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								- [ ] Repro on CI environment vs local
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								- [ ] Measure actual dialog appearance timing
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								- [ ] Test with setTimeout removed
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								- [ ] Verify import flow doesn't call handleRegistrationPrompt
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								## Risks & Scope
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								- Impacted: Contact addition tests, registration workflow tests; Data: None;
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								  Users: Test suite reliability
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								## Decision / Next Steps
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								- Owner: Development Team; By: 2025-01-28
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								- Action: Remove 1-second timeout + add test mode flag; Exit criteria: Tests
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								  pass consistently
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								## References
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								- `src/views/ContactsView.vue:971-1000`
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								- `src/views/ContactImportView.vue:500-520`
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								- `src/views/ContactsView.vue:774-800`
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								## Competence Hooks
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								- Why this works: Code path tracing revealed separate execution flows,
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								  evidence disproved initial assumptions
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								- Common pitfalls: Assuming related functionality without tracing execution
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								  paths, over-engineering solutions to imaginary problems
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								- Next skill: Learn to trace code execution before proposing architectural
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								  changes
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								- Teach-back: "What evidence shows that contact imports bypass registration
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								  dialogs?"
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								## Key Learning Points
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								### Evidence-First Approach
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								This investigation demonstrates the importance of:
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								1. **Tracing actual code execution** rather than making assumptions
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								2. **Citing specific evidence** with file:line references
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								3. **Validating problem scope** before proposing solutions
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								4. **Considering simpler alternatives** before complex architectural changes
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								### Code Path Tracing Value
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								By tracing the execution paths, we discovered:
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								- Import flow and direct add flow are completely separate
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								- The "multiple dialog interference" problem didn't exist
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								- A simple timeout removal would solve the actual issue
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								### Prevention of Over-Engineering
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								The investigation prevented:
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								- Unnecessary database schema changes
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								- Complex batch registration systems
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								- Migration scripts for non-existent problems
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								- Architectural changes based on assumptions
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								---
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								**Status**: Active investigation methodology
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								**Priority**: High
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								**Estimated Effort**: Ongoing reference
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								**Dependencies**: software_development.mdc
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								**Stakeholders**: Development team, QA team
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								## Model Implementation Checklist
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								### Before Investigation
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								- [ ] **Problem Definition**: Clearly define the problem to investigate
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								- [ ] **Scope Definition**: Determine investigation scope and boundaries
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								- [ ] **Methodology Planning**: Plan investigation approach and methods
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								- [ ] **Resource Assessment**: Identify required resources and tools
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								### During Investigation
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								- [ ] **Evidence Collection**: Gather relevant evidence and data systematically
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								- [ ] **Code Path Tracing**: Map execution flow for software investigations
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								- [ ] **Analysis**: Analyze evidence using appropriate methods
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								- [ ] **Documentation**: Document investigation process and findings
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								### After Investigation
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								- [ ] **Synthesis**: Synthesize findings into actionable insights
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								- [ ] **Report Creation**: Create comprehensive investigation report
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								- [ ] **Recommendations**: Provide clear, actionable recommendations
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								- [ ] **Team Communication**: Share findings and next steps with team
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